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1.2 What happens in cells (and what do cells need)?

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Question 44
F

Which statement describes how the two strands of a DNA molecule are held together?

[1]
A

Bases on one strand pair with complementary bases on the other strand.

B

Bases on one strand pair with identical bases on the other strand.

C

Sugars on one strand pair with phosphate groups on the other strand.

D

Phosphate groups on one strand pair with bases on the other strand.

Markscheme

1.2 What happens in cells (and what do cells need)? Questions

  1. GCSE
  2. /Biology
  3. /1.2 What happens in cells (and what do cells need)?

184 exam-style questions on OCR GCSE Biology 1.2 What happens in cells (and what do cells need)?, covering 1.2.1 Structure of DNA, 1.2.2 Nucleotides and complementary bases, 1.2.3 Protein synthesis, 1.2.4 DNA structure and the proteins made, 1.2.5 Investigating enzymatic reactions, and 1.2.6 Mechanism of enzyme action. Each one has a worked solution and a mark scheme showing where the marks go.

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